1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (C) 2026 Renesas Electronics Corp. 4 * Copyright (C) 2026 Ideas on Board Oy 5 * Copyright (C) 2026 Ragnatech AB 6 */ 7 8 #include "rpp_module.h" 9 10 #define LTM_MEAS_VERSION_REG 0x0000 11 12 #define LTM_MEAS_CTRL_REG 0x0004 13 #define LTM_MEAS_CTRL_LTM_MEAS_ENABLE BIT(0) 14 15 #define LTM_MEAS_RGB_WEIGHTS_REG 0x0008 16 #define LTM_MEAS_H_OFFS_REG 0x000c 17 #define LTM_MEAS_V_OFFS_REG 0x0010 18 #define LTM_MEAS_H_SIZE_REG 0x0014 19 #define LTM_MEAS_V_SIZE_REG 0x0018 20 21 #define LTM_MEAS_PRC_THRESH_NUM 8 22 #define LTM_MEAS_PRC_THRESH_REG(n) (0x001c + (4 * (n))) 23 24 #define LTM_MEAS_PRC_REG_NUM 8 25 #define LTM_MEAS_PRC_REG(n) (0x003c + (4 * (n))) 26 27 #define LTM_MEAS_L_MIN_REG 0x005c 28 #define LTM_MEAS_L_MAX_REG 0x0060 29 #define LTM_MEAS_L_GMEAN_REG 0x0064 30 31 static int rppx1_ltmmeas_probe(struct rpp_module *mod) 32 { 33 /* Version check. */ 34 if (rpp_module_read(mod, LTM_MEAS_VERSION_REG) != 1) 35 return -EINVAL; 36 37 return 0; 38 } 39 40 const struct rpp_module_ops rppx1_ltmmeas_ops = { 41 .probe = rppx1_ltmmeas_probe, 42 }; 43